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authorRoland Dreier <roland@eddore.topspincom.com>2005-08-25 13:40:04 -0700
committerRoland Dreier <rolandd@cisco.com>2005-08-26 20:37:38 -0700
commita4d61e84804f3b14cc35c5e2af768a07c0f64ef6 (patch)
treeecd1d07e5d5643ef1764e2e99de5ddd4103aec5d /include/rdma/ib_pack.h
parent1ad62a19f177e61d4dde111ba35fb4badd0c2106 (diff)
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[PATCH] IB: move include files to include/rdma
Move the InfiniBand headers from drivers/infiniband/include to include/rdma. This allows InfiniBand-using code to live elsewhere, and lets us remove the ugly EXTRA_CFLAGS include path from the InfiniBand Makefiles. Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'include/rdma/ib_pack.h')
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1 files changed, 245 insertions, 0 deletions
diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h
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+++ b/include/rdma/ib_pack.h
@@ -0,0 +1,245 @@
+/*
+ * Copyright (c) 2004 Topspin Corporation. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * $Id: ib_pack.h 1349 2004-12-16 21:09:43Z roland $
+ */
+
+#ifndef IB_PACK_H
+#define IB_PACK_H
+
+#include <rdma/ib_verbs.h>
+
+enum {
+ IB_LRH_BYTES = 8,
+ IB_GRH_BYTES = 40,
+ IB_BTH_BYTES = 12,
+ IB_DETH_BYTES = 8
+};
+
+struct ib_field {
+ size_t struct_offset_bytes;
+ size_t struct_size_bytes;
+ int offset_words;
+ int offset_bits;
+ int size_bits;
+ char *field_name;
+};
+
+#define RESERVED \
+ .field_name = "reserved"
+
+/*
+ * This macro cleans up the definitions of constants for BTH opcodes.
+ * It is used to define constants such as IB_OPCODE_UD_SEND_ONLY,
+ * which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives
+ * the correct value.
+ *
+ * In short, user code should use the constants defined using the
+ * macro rather than worrying about adding together other constants.
+*/
+#define IB_OPCODE(transport, op) \
+ IB_OPCODE_ ## transport ## _ ## op = \
+ IB_OPCODE_ ## transport + IB_OPCODE_ ## op
+
+enum {
+ /* transport types -- just used to define real constants */
+ IB_OPCODE_RC = 0x00,
+ IB_OPCODE_UC = 0x20,
+ IB_OPCODE_RD = 0x40,
+ IB_OPCODE_UD = 0x60,
+
+ /* operations -- just used to define real constants */
+ IB_OPCODE_SEND_FIRST = 0x00,
+ IB_OPCODE_SEND_MIDDLE = 0x01,
+ IB_OPCODE_SEND_LAST = 0x02,
+ IB_OPCODE_SEND_LAST_WITH_IMMEDIATE = 0x03,
+ IB_OPCODE_SEND_ONLY = 0x04,
+ IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE = 0x05,
+ IB_OPCODE_RDMA_WRITE_FIRST = 0x06,
+ IB_OPCODE_RDMA_WRITE_MIDDLE = 0x07,
+ IB_OPCODE_RDMA_WRITE_LAST = 0x08,
+ IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE = 0x09,
+ IB_OPCODE_RDMA_WRITE_ONLY = 0x0a,
+ IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE = 0x0b,
+ IB_OPCODE_RDMA_READ_REQUEST = 0x0c,
+ IB_OPCODE_RDMA_READ_RESPONSE_FIRST = 0x0d,
+ IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE = 0x0e,
+ IB_OPCODE_RDMA_READ_RESPONSE_LAST = 0x0f,
+ IB_OPCODE_RDMA_READ_RESPONSE_ONLY = 0x10,
+ IB_OPCODE_ACKNOWLEDGE = 0x11,
+ IB_OPCODE_ATOMIC_ACKNOWLEDGE = 0x12,
+ IB_OPCODE_COMPARE_SWAP = 0x13,
+ IB_OPCODE_FETCH_ADD = 0x14,
+
+ /* real constants follow -- see comment about above IB_OPCODE()
+ macro for more details */
+
+ /* RC */
+ IB_OPCODE(RC, SEND_FIRST),
+ IB_OPCODE(RC, SEND_MIDDLE),
+ IB_OPCODE(RC, SEND_LAST),
+ IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE),
+ IB_OPCODE(RC, SEND_ONLY),
+ IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE),
+ IB_OPCODE(RC, RDMA_WRITE_FIRST),
+ IB_OPCODE(RC, RDMA_WRITE_MIDDLE),
+ IB_OPCODE(RC, RDMA_WRITE_LAST),
+ IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
+ IB_OPCODE(RC, RDMA_WRITE_ONLY),
+ IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
+ IB_OPCODE(RC, RDMA_READ_REQUEST),
+ IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST),
+ IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE),
+ IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST),
+ IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY),
+ IB_OPCODE(RC, ACKNOWLEDGE),
+ IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE),
+ IB_OPCODE(RC, COMPARE_SWAP),
+ IB_OPCODE(RC, FETCH_ADD),
+
+ /* UC */
+ IB_OPCODE(UC, SEND_FIRST),
+ IB_OPCODE(UC, SEND_MIDDLE),
+ IB_OPCODE(UC, SEND_LAST),
+ IB_OPCODE(UC, SEND_LAST_WITH_IMMEDIATE),
+ IB_OPCODE(UC, SEND_ONLY),
+ IB_OPCODE(UC, SEND_ONLY_WITH_IMMEDIATE),
+ IB_OPCODE(UC, RDMA_WRITE_FIRST),
+ IB_OPCODE(UC, RDMA_WRITE_MIDDLE),
+ IB_OPCODE(UC, RDMA_WRITE_LAST),
+ IB_OPCODE(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
+ IB_OPCODE(UC, RDMA_WRITE_ONLY),
+ IB_OPCODE(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
+
+ /* RD */
+ IB_OPCODE(RD, SEND_FIRST),
+ IB_OPCODE(RD, SEND_MIDDLE),
+ IB_OPCODE(RD, SEND_LAST),
+ IB_OPCODE(RD, SEND_LAST_WITH_IMMEDIATE),
+ IB_OPCODE(RD, SEND_ONLY),
+ IB_OPCODE(RD, SEND_ONLY_WITH_IMMEDIATE),
+ IB_OPCODE(RD, RDMA_WRITE_FIRST),
+ IB_OPCODE(RD, RDMA_WRITE_MIDDLE),
+ IB_OPCODE(RD, RDMA_WRITE_LAST),
+ IB_OPCODE(RD, RDMA_WRITE_LAST_WITH_IMMEDIATE),
+ IB_OPCODE(RD, RDMA_WRITE_ONLY),
+ IB_OPCODE(RD, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
+ IB_OPCODE(RD, RDMA_READ_REQUEST),
+ IB_OPCODE(RD, RDMA_READ_RESPONSE_FIRST),
+ IB_OPCODE(RD, RDMA_READ_RESPONSE_MIDDLE),
+ IB_OPCODE(RD, RDMA_READ_RESPONSE_LAST),
+ IB_OPCODE(RD, RDMA_READ_RESPONSE_ONLY),
+ IB_OPCODE(RD, ACKNOWLEDGE),
+ IB_OPCODE(RD, ATOMIC_ACKNOWLEDGE),
+ IB_OPCODE(RD, COMPARE_SWAP),
+ IB_OPCODE(RD, FETCH_ADD),
+
+ /* UD */
+ IB_OPCODE(UD, SEND_ONLY),
+ IB_OPCODE(UD, SEND_ONLY_WITH_IMMEDIATE)
+};
+
+enum {
+ IB_LNH_RAW = 0,
+ IB_LNH_IP = 1,
+ IB_LNH_IBA_LOCAL = 2,
+ IB_LNH_IBA_GLOBAL = 3
+};
+
+struct ib_unpacked_lrh {
+ u8 virtual_lane;
+ u8 link_version;
+ u8 service_level;
+ u8 link_next_header;
+ __be16 destination_lid;
+ __be16 packet_length;
+ __be16 source_lid;
+};
+
+struct ib_unpacked_grh {
+ u8 ip_version;
+ u8 traffic_class;
+ __be32 flow_label;
+ __be16 payload_length;
+ u8 next_header;
+ u8 hop_limit;
+ union ib_gid source_gid;
+ union ib_gid destination_gid;
+};
+
+struct ib_unpacked_bth {
+ u8 opcode;
+ u8 solicited_event;
+ u8 mig_req;
+ u8 pad_count;
+ u8 transport_header_version;
+ __be16 pkey;
+ __be32 destination_qpn;
+ u8 ack_req;
+ __be32 psn;
+};
+
+struct ib_unpacked_deth {
+ __be32 qkey;
+ __be32 source_qpn;
+};
+
+struct ib_ud_header {
+ struct ib_unpacked_lrh lrh;
+ int grh_present;
+ struct ib_unpacked_grh grh;
+ struct ib_unpacked_bth bth;
+ struct ib_unpacked_deth deth;
+ int immediate_present;
+ __be32 immediate_data;
+};
+
+void ib_pack(const struct ib_field *desc,
+ int desc_len,
+ void *structure,
+ void *buf);
+
+void ib_unpack(const struct ib_field *desc,
+ int desc_len,
+ void *buf,
+ void *structure);
+
+void ib_ud_header_init(int payload_bytes,
+ int grh_present,
+ struct ib_ud_header *header);
+
+int ib_ud_header_pack(struct ib_ud_header *header,
+ void *buf);
+
+int ib_ud_header_unpack(void *buf,
+ struct ib_ud_header *header);
+
+#endif /* IB_PACK_H */